Merge branch 'mm-6.4.1' into 'master'

Update Mattermost to 6.4.1

Closes platform-one/big-bang/apps/collaboration-tools/mattermost#46

See merge request platform-one/big-bang/bigbang!1412

chart/values.yaml

@@ -1093,7 +1093,7 @@ addons:
     git:
       repo: https://repo1.dso.mil/platform-one/big-bang/apps/collaboration-tools/mattermost.git
       path: "./chart"
-      tag: "0.6.0-bb.1"
+      tag: "0.7.0-bb.0"
 
     # -- Flux reconciliation overrides specifically for the Mattermost Package
     flux: {}

tests/test-values.yaml

@@ -148,6 +148,7 @@ gatekeeper:
           - gitlab/gitlab-cypress-test
           - gitlab/gitlab-runner-cypress-test
           - kiali/kiali-operator-cypress-test
+          - mattermost/mattermost-cypress-test
       allowedSecCompProfiles:
         parameters:
           excludedResources:
@@ -200,6 +201,7 @@ gatekeeper:
           - gitlab/gitlab-cypress-test
           - gitlab/gitlab-runner-cypress-test
           - kiali/kiali-operator-cypress-test
+          - mattermost/mattermost-cypress-test
     bbtests:
       enabled: true